94-95 Mustang 5.0 AODE MS3 Gold Box w/ Microsquirt

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Ok next battle is finishing up the transmission setup:

1. I need help determining Where the Trans Signal Return is on the EEC Plug. I have looked over tons of diagrams and cannot find any ground information for the AODE Harness and ultimately where they end up when they make it to the EEC Harness.

2. Same thing as above where does the MLPS gnd come into the EEC?

3. For the VSS+ and VSS-, Keith from 64 Bit Tuning has it listed to install a 20-40ohm shunt resistor to reduce noise. I am not familiar with what i need here exactly. If you know what I need please help. Could I use a 10uF capacitor to reduce noise instead?
4. OD Switch setup. It is listed to wire it to ground. Im thinking this wire comes in on the eec plug on pin 41. If that is the case do I connect EEC pin 41 to Micro 34. Then at the switch take the other wire and ground to the chassis near the radio.
TCM Function
94-95 EEC PIN
MS3 Gray
MS3 Black
MicroSquirt
Other
Shift Solenoid 1​
51​
-​
-​
8​
TCC Lock Up​
53​
-​
-​
9​
Trans Temp TOT​
49​
-​
-​
26​
Shift Solenoid 2​
52​
-​
-​
7​
Trans Sig RTN (Sen GND)​
????​
-​
-​
20​
EPC​
38​
-​
-​
10​
MLPS Sensor GND​
????​
-​
-​
20​
MLPS​
30​
-​
-​
29​
MLPS VREF​
28​
Jump Micro 28 to 29 with 470ohm resistor​
VSS+​
3​
-​
-​
32​
22-40ohm 1/4w shunt resistor​
VSS-​
6​
-​
-​
33​
22-40ohm 1/4w shunt resistor​
OD Switch​
-​
-​
-​
34​
Wire switch to ground​

64Bit Tuning Guide:
1586971382684.png
aode 4r70w wiring.jpg
EEC-Wiring-Diagram.jpg
 
  • Sponsors(?)


beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Okay decipha at efidynotuning.com confirmed the all signal returns come I to pin 46 on the EEC.

So that answers questions 1 & 2.

Now questions 3 & 4.
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,143
6,051
204
31
Hillsborough county
For #3 I use a 1k resistor, the purpose is to shunt some of the spike. remember that a VR sensor produces an AC wave form and at high speeds this can become too much for the input to handle. The micro has a capacitor shunted internally.

#4 the signal is a ground input, you can either use the sgn rtn or chassis ground. both will work
 
  • Like
Reactions: beyondEOD

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Thanks.

Just to clarify further for the OD switch I will take EEC 36 and jump it to a ground. Then the factory switch will work as designed?
 

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,143
6,051
204
31
Hillsborough county
Thanks.

Just to clarify further for the OD switch I will take EEC 36 and jump it to a ground. Then the factory switch will work as designed?
That is correct, this is also how i have mine wired.
other things to think about with the micro is tying in the brake light switch to drop you out of lock up and overdrive, this does require a 12v input to be made a ground signal. if you are willing to build a small board with components i can give you plans to do this with a transistor rather than a relay.
Alternatively you can solder the components and tape them then seal it in heat shrink inside the harness.
 
  • Like
Reactions: beyondEOD

a91what

SendMeUrDataLog
Mod Dude
Apr 6, 2011
10,143
6,051
204
31
Hillsborough county
Its smaller and wont go bad over time.. no clicking noises.. it's my go too personally. I always suggest a relay because most people understand how they work.
 
  • Like
Reactions: beyondEOD

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
I am finishing up the harness and am wondering why EFI Source has a 330ohm resistor from EEC Pin 57 to EEC Pin 36:

EEC DescriptionEEC PinMS3 DescriptionMS3 Pin
12V Ignition57
SPOUT36Tach26
 

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Ok good to leave it in there then?

I was going to us 57 to power the micro but ill tap into the other 12v ign source.
 

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Alright got the MS3 in the car and powered up. No smoke as of now. Did have a small wiring error with the CAN wiring. Switched the wires and the Micro connected. Lost my desoldering tool so I still have not connected the mosfets to take a few of the inputs to ground when triggered. So soon as Amazon delivers I can finish that wiring.

The ToDo List that I need help with:

H/L Fan Control
FP Sensor (on PT4, could not figure out how to assign PT4 to a generic sensor; should I repin to the spare 02 input?)
VSS Configuration
MLPS Configuration
IAT Calibration (assume the generic Ford Cal will work next time i connect to the MS)
CLT Callibration (assume the generic Ford Cal will work next time i connect to the MS)
ACCS Configuration
OD Switch

I have been through the software and have found these holes in my configuration. Might be time for some remote support.
 

Attachments

Last edited:

beyondEOD

Member
Nov 23, 2019
86
10
18
Indiana
Came up with this mosfet board I found on ebay to handle my ground triggers. I removed the screw terminals that came on the board and soldered wires direct. I'm using this for the following functions.

Wideband turn on (complete the PWR GND of that circuit)

TC unlock with Brake engagement

ACCS
20200510_174818.jpg
20200510_174849.jpg
20200510_175235.jpg
 

Attachments

Thread starter Similar threads Forum Replies Date
I 1988 Mustang possible transmission shuddle? Fox 5.0 Mustang Tech 4
beyondEOD 94-95 Mustang GT Auto Dual Microsquirt ECUs Digital Self-tuning Forum 14
J 97 explorer 5.0 & AOD trans into 65 mustang 1965 - 1973 Classic Mustangs -General/Talk- 11
5.0specialist Drivetrain 91' Mustang AOD Issues Fox 5.0 Mustang Tech 6
S 91 Aod To C4 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 8
P Drivetrain 93 Mustang Aod Issues? Fox 5.0 Mustang Tech 5
DM87GT Bad Torque Converter 87' Mustang Gt W/aod? Fox 5.0 Mustang Tech 6
BKM48198 Cam Questions For An Aod Mustang Fox 5.0 Mustang Tech 5
C Expired 1993 Mustang 5.0 Lx Aod Triple White Convertible Fox Body Mustangs For Sale (1979-93) 1
J C4 To Aod Swap In 67 Mustang Classic Mustang Specific Tech 2
M AOD in classic 67 mustang Classic Mustang Specific Tech 1
xMalignancy 92 Mustang AOD Trans problems Fox 5.0 Mustang Tech 1
R 1994 Mustang GT AODE for sale in South Florida...$1750 SN95 Mustangs For Sale (1994-04) 13
R 1994 Mustang GT AODE for sale in South Florida...$2300 SN95 Mustangs For Sale (1994-04) 4
J 1968 Mustang 5.0 Roller motor & aod suggestions needed Classic Mustang Specific Tech 15
B 1988 mustang gt aod trans Drivetrain Parts 0
R WTB Trans dip stick tube for 95 Mustang GT (AODE) Drivetrain Parts 0
281CI96Coupe FS: BUILT FORD MUSTANG AODE AUTOMATIC TRANSMISSION Drivetrain Parts 0
M 1996 MUSTANG 3.8 ENGINE AND AODE TRANSMISSION Drivetrain Parts 0
M 1998 MUSTANG 3.8 ENGINE AND AODE TRANNY Engine and Power Adder Parts 0
M Expired 94-98 MUSTANG 3.8 AODE TRANSMISSION Drivetrain Parts 1
stang200690 s197 Mustang AOD to TR3650. 2005 - 2009 Specific Tech 0
F Will other AODE's work in my 94 mustang GT 1994 - 1995 Specific Tech 6
K 65-66 Mustang AOD CONVERSION SWAP parts for sale Drivetrain Parts 0
M AOD-E issue, 94 mustang 5.0 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 26
Darkwriter77 For sale/trade: 1984 Mustang LX hatch 5.0 AOD CFI Fox Body Mustangs For Sale (1979-93) 1
85GTKid FS: 1985 Mustang 5.0 AOD Brookings OR. Fox Body Mustangs For Sale (1979-93) 0
J 67 Mustang w/ 302 & AOD. Which LT Headers? Classic Mustang Specific Tech 3
PapiStang50 mustang 5.0 wount turn over after swaping engine and trang into AOD shell????? Fox 5.0 Mustang Tech 11
99FiveOh My 1994 GT Mustang Aode to T5 Conversion w/PICS! 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 134
jd-hart AOD to T5 swap article in what Mustang magazine? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 3
S 89 mustang AOD to 5-speed Swap...Help please!!! Fox 5.0 Mustang Tech 3
M C4 to AOD in a 66 Mustang Classic Mustang Specific Tech 10
bnichols04 65 mustang aod starter Classic Mustang Specific Tech 4
H stock gears mustang AOD 1987 Fox 5.0 Mustang Tech 2
G AOD linkage into 66 Mustang Classic Mustang Specific Tech 1
95-gts-rocket AOD now in a 78' Mustang 1974 - 1978 Mustang II Talk & Tech 22
B 92Grand to 91 mustang AOD swap Regional Forums and Event Information 2
F AOD Cooler lines in 66 Mustang Classic Mustang Specific Tech 3
F AOD in 66 Mustang problem Classic Mustang Specific Tech 2
F AOD in 66 Mustang Wiring Classic Mustang Specific Tech 1
B AOD To T5 Conversion 86 Mustang GT Fox 5.0 Mustang Tech 1
bnichols04 65 mustang all new body parts, new 302 & AOD!! Engine and Power Adder 0
1 AOD into 67 Mustang....... Fox 5.0 Mustang Tech 3
BlackLX5.0 Mustang AOD Fox 5.0 Mustang Tech 7
W AOD in a 1968 mustang Classic Mustang Specific Tech 3
C 67 mustang with AOD Classic Mustang Specific Tech 4
C AOD on 67 mustang with long tube headers Classic Mustang Specific Tech 6
MLee23 Mustang AOD 3:73 Speedo Gear Fox 5.0 Mustang Tech 1
T 90 Mustang 5.0 AOD Fox 5.0 Mustang Tech 32
Similar threads